C-peptide

... Why get tested?
To monitor insulin production by the beta cells in the pancreas and to help determine the cause of hypoglycemia

When to get tested?
If you have type 1 or type 2 diabetes and your doctor wants to determine if you are producing enough of your own insulin, if you are insulin resistant, or if it is time to supplement oral medication with insulin injections; your doctor also may order a C-peptide test if you have documented hypoglycemia

Sample required?
A blood sample drawn from a vein in your arm and sometimes a 24-hour urine sample is taken
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C-peptide is a peptide which is made when proinsulin is split into insulin a ...